Use calculation group in a measure doesn't show same result with calculation group used directly

[Lesle]

I create a calucation item "Margin calculation" in a calculation group, if I use it directly in a visual, it works, 

 

 

But when I use it in measure  

Product Mix rate - common = calculate([Product Mix],'Calculation group'[Calculation group column]="Margin Calculation"),

it showes nothing

I don't know what's wrong with the measure, is there any possible causes ？ 

[v-jingzhan-msft]

Hi @Lesle 

The details is not enough to help troubleshoot this issue. Can you share the DAX expressions of the calucation item "Margin calculation" and [Product Mix]? Is [Product Mix] an explicit measure? Calculation items only apply to measures or explicit measures. 

Best Regards,
Jing

[Lesle]

Thanks for your reply, here is the DAX of "Margin calculation"

Margin calculation = switch(true(),

selectedvalue('Parameter - Dimension'[Parameter - Dimension Fields])="'Master - Mgmt'[Business Line]",sumx(values('Master - Mgmt'[Business Line]),SELECTEDMEASURE()),

selectedvalue('Parameter - Dimension'[Parameter - Dimension Fields])="'Master - Mgmt'[Product Group]",sumx(values('Master - Mgmt'[Product Group]),SELECTEDMEASURE()),

selectedvalue('Parameter - Dimension'[Parameter - Dimension Fields])="'Master - PC'[Product Area1_keydata]",sumx(values('Master - PC'[Product Area1_keydata]),SELECTEDMEASURE()),

selectedvalue('Parameter - Dimension'[Parameter - Dimension Fields])="'Master - PC'[Product Family_S1]",sumx(values('master - PC'[Product Family_S1]),SELECTEDMEASURE()),

selectedvalue('Parameter - Dimension'[Parameter - Dimension Fields])="'Master - PC'[Product Family_S2_Cube]",sumx(values('master - PC'[Product Family_S2_Cube]),SELECTEDMEASURE()),

selectedvalue('Parameter - Dimension'[Parameter - Dimension Fields])="'Master - PC'[PC name]",sumx(values('Master - PC'[PC name]),SELECTEDMEASURE()),

SELECTEDMEASURE())

and "Product Mix", what do you mean by explicit measure? 

Product Mix = ([Rev percentage change])*[Gross Margin CY]

[v-jingzhan-msft]

It seems you have used a field parameter in the calculation item. Where do you use this field parameter in the report? Does it filter different item when you see the difference?

[Lesle]

I used the field parameter as row of the table, you can see "Parameter - Dimension" in the picture. I wanna realize that the calculation item can SUMX different dimension as per the field I selete in the parameter